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of white, woolly hairs. These are slightly over 1 mm. long 
and are arranged in bunches. Each hair consists of one, 
two or three rows of cells, the thickness decreasing from 
below upwards (fig. 69). 
The leaf is constructed after the ordinary centric type 
and resembles that of Horaninowia ulicina (fig. 71): There is 
an epidermis of one layer with large papillæ, a crystal-layer, 
one layer of palisade cells with a starch-sheath, a thin zone 
of aqueous tissue, and a thick sclerenchyma enclosing the vein. 
Fig. 69. Cornulaca Korschinskyi. Parts of axillary hairs. 
(X 302). 
The small flowers do not open till autumn. The perianth 
remains round the fruit and bears a spine 4 mm. in length. 
Horaninowia ulicina F. & M. 
A sand-desert plant with decumbent branches and aci- 
cular leaves. The branches may attain a length of 20—30 
centimetres (see fig. 70), with long internodes between the 
pairs of opposite leaves. In the woolly-haired axils of the 
more or less cylindrical thornlike leaves, there are either 
rosette-shoots, or more or less elongated long-shoots, or 
flowers. The leaves on the main branch die rather early 
but the axillary shoots remain green. 
In favourable localities the leaves may attain a length of 
a couple of centimetres, and the shoots are erect (var longifolia.) 
